[REVOLUTIONARY WAR]. By the King. A Proclamation for a general Fast. We, taking into our most serious consideration that just and necessary hostilities in which we are engaged with the French king and the unnatural rebellion carrying on in some of our provinces and colonies in North America, and putting our trust in Almighty God, that he will vouchsafe a special blessing on our arms both by sea and land...”  Therefore The King proclaims a public fast and humiliation to be observed on Wednesday, 10th day of February. London: Charles Eyre and William Strahan, 1779. Folio, (16 ¼ x 13 ¼ in). UNCUT. Large woodcut of Royal arms at top, woodcut capital letter “W,” text in black letter. (Creased, otherwise in fine condition.) GEORGE III REACTS TO THE “UNNATURAL REBELLION” IN THE COLONIES.